CN102409418B - Production method of terylene fine-denier porous yarn - Google Patents
Production method of terylene fine-denier porous yarn Download PDFInfo
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- CN102409418B CN102409418B CN201110265410.5A CN201110265410A CN102409418B CN 102409418 B CN102409418 B CN 102409418B CN 201110265410 A CN201110265410 A CN 201110265410A CN 102409418 B CN102409418 B CN 102409418B
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Abstract
The invention discloses a production method of terylene fine-denier porous yarn. The production method comprises the following steps of: slice drying, screw extrusion and melting, metering pump arrangement, spinning, cross air blasting and cooling, oiling, stretching, primary network arrangement and coiling and shaping, and is characterized in that: in the spinning step, a three-groove type spinneret plate is adopted, the three-groove type spinneret plate is provided with three separation strips which divide spinneret orifices into four parts, and air permeation gaps are formed among the yarn ejected by the four parts when yarn is ejected; in the cross air blasting and cooling step, a cross air blasting air conditioner is adopted, and the air permeation gaps are parallel to the direction of cross blasting air; an air blasting flow distributor composed of horizontal flow distributing sheets which are arranged at intervals is arranged at the upper part of a cross air blasting yarn window and used for distributing the flow of the upper cross blasting air; in the oiling step, two-step oiling is carried out by firstly oiling with a nozzle and then oiling with an oil wheel; and a network presetting process is carried out between the oiling step and the stretching step. According to the production method of terylene fine-denier porous yarn disclosed by the invention, production of fine-denier porous yarn by cross air blasting and cooling can be achieved.
Description
Technical field
The present invention relates to a kind of production technology of chemical fiber wire, especially a kind of production method of terylene fine-denier porous yarn.
Background technology
Along with further developing of chemical fibre industry, technology and the quality requirement of fiber product are more and more higher, particularly most fused mass directly spinning enterprise adopts one after another ring to blow the type of cooling and produces thin dawn or super fine denier porous yarn, product quality has obtained client's consistent approval, and market demand is increasing, but the most of lateral blowing type of cooling that adopts of enterprise is spun in traditional section at present, cannot produce porous fine denier or superfine Denier fibre, main cause is that thin dawn or super fine denier product filament number are low, hole count is many, when tow cooling, cooling air cannot penetrate tow smoothly, cause tow cooling inhomogeneous, tow cooling effect near side-blown slight wind window one side is better, and can not get fully cooling away from the tow of side-blown slight wind window one side, in addition, the tow band askew (band downwards) that the wind on side-blown slight wind window top is easily walked about downwards, thereby greatly reduce the cooling effect of this part lateral blowing, lousiness or doubling have finally been formed, the product of producing cannot looming weaving, product quality can not get client's approval, and therefore fine-denier porous silk can only adopt the type of cooling of ring blowing, and utilize lateral blowing to produce fine-denier porous silk is the bottleneck problem in industry always.
Summary of the invention
The production method of the terylene fine-denier porous yarn of a kind of cooling effect that can effectively guarantee tow that the object of the invention is to design in order to solve the deficiency of above-mentioned technology, adopts and can realize in this way with the fine-denier porous silk of the cooling production of lateral blowing.
The production method of the terylene fine-denier porous yarn that the present invention is designed, comprises the steps: chip drying, screw extruding melting, measuring pump, spinning, quenching, oils, drawing-off, master network, coiling and molding, it is characterized in that:
In spinning step: adopt three slot type spinneretss, three described slot type spinneretss are provided with three dividing strips spinneret orifice is divided into four parts, during wire vent, between the silk of these four part ejections, form ventilative gap;
In quenching step: adopt air quench condition, described ventilative gap is parallel with lateral blowing wind direction; On side-blown slight wind window top, the blowing rectifier being comprised of spaced horizontal commutator segment is set, superposed lateral blowing is carried out to rectification;
In the step that oils: adopt two steps to oil, first oil with nozzle, then oil with oil tanker;
Between step and drafting step, be also provided with pre-network step oiling.
Preferred scheme is: in quenching step: be provided with arc notch on described horizontal commutator segment, when walking about, tow is just in time positioned at this breach, like this, because tow is the flowing mode of walking of " be embedded in blowing rectifier in ", effect due to horizontal commutator segment, lateral blowing just can be with askew, and than not adopting, cooling effect is better in this way.Preferably at described arc notch limit arc, be provided with arcuate guide sheet, this arcuate guide sheet, by the intrafascicular heart of lateral blowing guide wire of level, can form the effect that a ring blows like this, and lateral blowing almost can carry out from tow surrounding cooling to it, and cooling effect is better.
Further scheme is: in spinning step: 293 ℃ of spinning temperatures, and spinning speed is 4300 ms/min, described spinnerets plate footpath is that 85mm, spinneret orifice number are 288;
In quenching step: side-blown slight wind window temperature is controlled 32 ℃～35 ℃, and wind speed is controlled 0.80 ± 0.05m/s;
In the step that oils: oil applying rate is controlled at 0.8% ± 0.5;
In pre-network step: network pressure is controlled at 0.8 kilogram;
In drafting step: drafting multiple is 1.65 times, the first drawing-off hot-rolling speed is that 2662 ms/min, temperature are 76 ℃, and the second drawing-off hot-rolling speed is that 4392 ms/min, temperature are 116 ℃;
In master network step: network pressure is controlled at 1.8 kilograms.
The beneficial effect of the production method of the terylene fine-denier porous yarn of gained of the present invention is:
1, between the silk being sprayed by spinnerets, there is ventilative gap, lateral blowing can pass this ventilative gap, thereby increase film-cooled heat, not only can carry out effective cooling to the tow near side-blown slight wind window one side, and can guarantee to obtain fully cooling away from the tow of side-blown slight wind window one side; Due to the effect of blowing rectifier, the difficult tow band of being walked about downwards of wind that is positioned at side-blown slight wind window top is askew, has controlled the stability of lateral blowing, guarantees its cooling capacity, has effectively reduced broken end phenomenon and wild effect;
2, adopt two steps to oil, can effectively improve the uniformity oiling, improve the Color of product;
When 3, pre-network step step can prevent drawing-off, on hot-rolling, tow is beated, and amplitude is large, broken end situation how.
Accompanying drawing explanation
Fig. 1 is the structural representation of spinnerets of the present invention;
Fig. 2 is the schematic diagram of 1 window of embodiment;
Fig. 3 is the schematic diagram of embodiment 2 blowing rectifiers;
Fig. 4 is the schematic diagram of the horizontal commutator segment arc notch of embodiment 3;
In figure: spinnerets 1, dividing strip 2, spinneret orifice 3, blowing rectifier 4, horizontal commutator segment 5, arc notch 6, arcuate guide sheet 7, side-blown slight wind window 8, tow 9.
The specific embodiment
Below by embodiment, the invention will be further described by reference to the accompanying drawings.
Embodiment 1:
The production method of the described terylene fine-denier porous yarn of the present embodiment, comprises the steps: chip drying, screw extruding melting, measuring pump, spinning, quenching, oils, drawing-off, master network, coiling and molding, it is characterized in that:
In spinning step: adopt three slot type spinneretss 1 (as shown in Figure 1), three described slot type spinneretss 1 are provided with three dividing strips 2 spinneret orifice 3 is divided into four parts, during wire vent, between the silk of these four part ejections, form ventilative gap;
In quenching step: adopt air quench condition, described ventilative gap is parallel with lateral blowing wind direction; On side-blown slight wind window 8 tops, the blowing rectifier 4 (as shown in Figure 2) being comprised of spaced horizontal commutator segment 5 is set, superposed lateral blowing is carried out to rectification;
In the step that oils: adopt two steps to oil, first oil with nozzle, then oil with oil tanker;
Between step and drafting step, be also provided with pre-network step oiling.
The beneficial effect of the production method of the described terylene fine-denier porous yarn of the present embodiment is:
1, between the silk being sprayed by spinnerets 1, there is ventilative gap, lateral blowing can pass this ventilative gap, thereby increase film-cooled heat, not only can carry out effective cooling to the tow near side-blown slight wind window 8 one sides, and can guarantee to obtain fully cooling away from the tow of side-blown slight wind window 8 one sides; Due to the effect of blowing rectifier 4, the difficult tow band of being walked about downwards of wind that is positioned at side-blown slight wind window 8 tops is askew, has controlled the stability of lateral blowing, guarantees its cooling capacity, has effectively reduced broken end phenomenon and wild effect;
2, adopt two steps to oil, can effectively improve the uniformity oiling, improve the Color of product;
When 3, pre-network step step can prevent drawing-off, on hot-rolling, tow is beated, and amplitude is large, broken end situation how.
The production method of the described terylene fine-denier porous yarn of the present embodiment, FDY for the production of 167D/288F, comprise the steps: chip drying, screw extruding melting, measuring pump, spinning, quenching, oil, drawing-off, master network, coiling and molding, it is characterized in that:
In spinning step: adopt three slot type spinneretss 1, three described slot type spinneretss 1 are provided with three dividing strips 2 spinneret orifice 3 is divided into four parts, during wire vent, between the silk of these four part ejections, form ventilative gap; Wherein, 293 ℃ of spinning temperatures, spinning speed is 4300 ms/min, described spinnerets 1 plate footpath is that 85mm, spinneret orifice 3 numbers are 288;
In quenching step: adopt air quench condition, described ventilative gap is parallel with lateral blowing wind direction; The blowing rectifier 4 being comprised of spaced horizontal commutator segment 5 is set on side-blown slight wind window 8 tops (whole Si Chuan top four/part), superposed lateral blowing is carried out to rectification, described horizontal commutator segment 5 is provided with arc notch 6 (as shown in Figure 3), is just in time positioned at this breach when tow is walked about; Wherein, side-blown slight wind window 8 temperature are controlled 32 ℃～35 ℃, and wind speed is controlled 0.80 ± 0.05m/s;
In the step that oils: adopt two steps to oil, first oil with nozzle, then oil with oil tanker; Wherein, oil applying rate is controlled at 0.8% ± 0.5;
Between step and drafting step, be also provided with pre-network step oiling, in pre-network step, network pressure is controlled at 0.8 kilogram;
In drafting step: drafting multiple is 1.65 times, the first drawing-off hot-rolling speed is that 2662 ms/min, temperature are 76 ℃, and the second drawing-off hot-rolling speed is that 4392 ms/min, temperature are 116 ℃;
In master network step: network pressure is controlled at 1.8 kilograms.
Wherein, raw material section adopts greatly light section, chipping qualities index:
(1) fusing point: >=260 ℃,
(2) inherent viscosity: 0.65dl/g,
It is oil solution dedicated that spinning oil adopts Japan to produce this F-1489FDY of bamboo, matched proportion density: 12.5%;
The product the key technical indexes that the production method of the described terylene fine-denier porous yarn of employing the present embodiment is produced is as follows:
1, line density: 167dtex/288F
2, line density deviation ratio: ± 0.3%
3, fracture strength: >=3.5CN/dtex
4, elongation at break: 25% ± 5.0%
5, boiling water shrinkage: 9.0% ± 0.5%
6, oil content: 0.85% ± 0.5%
7, network degree: 10 ± 5/meter
8, dye uniformity: evenly (5 grades, >=ash card)
This product is mainly for the production of top grade snow Neil decorative product, particularly have high-grade luxurious, soft, matte is plentiful, the decorative fabric that drapability is good, this fabric of original making, because its specification is 167dtex/288F, therefore to the inherent quality of polyster fibre, require quite high, to the lateral blowing of spinning, require harsher, spinning difficulty is larger, the dry uniformity of the bar of fiber is had to quite high requirement, dyeing uniformity also require to be up to state standards 5 grades, ash card, therefore must adopt the ring of fused mass directly spinning to blow the production method that veneer spins terylene fine-denier porous yarn, and the product that the production method of the described terylene fine-denier porous yarn of the present embodiment is produced, what can effectively meet high-grade snow Neil decorative product wants product quality requirement.
Embodiment 3:
The production method of the described terylene fine-denier porous yarn of the present embodiment, as different from Example 2: as shown in Figure 4, at described arc notch 6 limit arcs, be provided with arcuate guide sheet 7, this arcuate guide sheet 7 is by the intrafascicular heart of lateral blowing guide wire of level, can form the effect that a ring blows like this, lateral blowing almost can carry out from tow surrounding cooling to it, cooling effect is better.
The production method of the described terylene fine-denier porous yarn of the present embodiment can be used for producing 300D/576F low-stretch yarn.
Specific embodiment described herein is only to design of the present invention explanation for example.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (1)
1. a production method for terylene fine-denier porous yarn, comprises the steps: chip drying, screw extruding melting, measuring pump, spinning, quenching, oils, drawing-off, master network, coiling and molding, it is characterized in that:
In spinning step: adopt three slot type spinneretss, three described slot type spinneretss are provided with three dividing strips spinneret orifice is divided into four parts, during wire vent, between the silk of these four part ejections, form ventilative gap;
In quenching step: adopt air quench condition, described ventilative gap is parallel with lateral blowing wind direction; On side-blown slight wind window top, the blowing rectifier being comprised of spaced horizontal commutator segment is set, superposed lateral blowing is carried out to rectification;
In the step that oils: adopt two steps to oil, first oil with nozzle, then oil with oil tanker;
Between step and drafting step, be also provided with pre-network step oiling;
In quenching step: be provided with arc notch on described horizontal commutator segment, be just in time positioned at this breach when tow is walked about;
At described arc notch limit arc, be provided with arcuate guide sheet, this arcuate guide sheet is by the intrafascicular heart of lateral blowing guide wire of level;
In spinning step: 293 ℃ of spinning temperatures, spinning speed is 4300 ms/min, described spinnerets plate footpath is that 85mm, spinneret orifice number are 288;
In quenching step: side-blown slight wind window temperature is controlled 32 ℃～35 ℃, and wind speed is controlled 0.80 ± 0.05m/s;
In the step that oils: oil applying rate is controlled at 0.8% ± 0.5;
In pre-network step: network pressure is controlled at 0.8 kilogram;
In drafting step: drafting multiple is 1.65 times, the first drawing-off hot-rolling speed is that 2662 ms/min, temperature are 76 ℃, and the second drawing-off hot-rolling speed is that 4392 ms/min, temperature are 116 ℃;
In master network step: network pressure is controlled at 1.8 kilograms.
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| CN102926011A (en) * | 2012-10-31 | 2013-02-13 | 张家港锦亿化纤有限公司 | Heat preservation plate in cross air blow device |
| CN105926060B (en) * | 2016-06-12 | 2017-04-12 | 福建百宏聚纤科技实业有限公司 | Melt direct spinning superfine denier polyester filament and making method thereof |
| CN109137101A (en) * | 2018-08-07 | 2019-01-04 | 浙江彩蝶实业有限公司 | The production technology of high tenacity polyester fiber DTY |
| CN111636104A (en) * | 2020-05-27 | 2020-09-08 | 浙江恒优化纤有限公司 | Composite spinning equipment and composite spinning process |
| CN113668077B (en) * | 2021-09-08 | 2022-10-25 | 浙江佳人新材料有限公司 | Production method of regenerated FDY (fully drawn yarn) environment-friendly bright fine denier fiber |
| CN115142168B (en) * | 2022-01-07 | 2023-08-01 | 桐昆集团浙江恒通化纤有限公司 | Production method and device of special DTY (draw textured yarn) fiber for special chenille yarns |
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| JPS56107005A (en) * | 1980-01-24 | 1981-08-25 | Mitsubishi Rayon Co Ltd | Spinneret for making extremely fine filament |
| DE19513941A1 (en) * | 1994-04-21 | 1995-10-26 | Barmag Barmer Maschf | Synthetic filament spinning appts. |
| CN1844504A (en) * | 2006-03-14 | 2006-10-11 | 盛虹集团有限公司 | Process for producing porous poly(ethylene terephthalate) fine denier filament by using single plate |
| CN101078135A (en) * | 2007-06-28 | 2007-11-28 | 江苏盛虹化纤有限公司 | Processing technique for 300 denier 576 pore terylene pre-orientation wire |
| CN101139735A (en) * | 2007-08-16 | 2008-03-12 | 江苏恒力化纤有限公司 | Method for preparing ultra-fine denier polyester filament yarn |
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Effective date of registration: 20200228 Address after: No. 188, Kunming Road, zhouquan Town, Tongxiang City, Jiaxing City, Zhejiang Province Patentee after: Tongkun Group Zhejiang Hengchao Chemical Fiber Co., Ltd Address before: Tongxiang City Qingfeng road Jiaxing City, Zhejiang province 314513 No. 199 Patentee before: Tongkun Group Co., Ltd. |
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